Public Release: 

Pesticide detection on a chip

University of California - Davis

Nanotechnology can be applied to make high-throughput tests, for example for pesticides or other contaminants, that are smaller, faster and more sensitive than conventional assays. UC Davis researchers led by Ian Kennedy, professor of mechanical and aeronautical engineering, and Bruce Hammock, professor of entomology, have made fluorescent nanoparticles of lanthanide oxide and europium oxide that can be coupled to biological molecules and used in antibody-based assays for pesticide residues. The nanoparticles can also be sorted magnetically. The researchers are currently investigating carrying out these assays in microdroplets and in microchannels on etched chips.

These presentations will discuss the development of these fluorescent assays and their possible applications in environmental testing and other areas.


Contact: Ian Kennedy, Mechanical and Aeronautical Engineering, (530) 752-2796,; Bruce Hammock, Entomology, (530) 752-7519,

Paper: Nanoscale fluoroimmunoassays with lanthanide oxide nanoparticles

Authors: Marja E. Koivunen, Shirley J. Gee, Ian M. Kennedy and Bruce D. Hammock, UC Davis

Session: Bridging the Measurement Gap: Comparing Traditional (Millimeter-scale) and Emerging (Nanometer-scale) Bioassays

Session date and time: 1:30 p.m. to 5:10 p.m., Monday, March 29

Paper: Application of europium oxide nanoparticles as a fluorescent reporter for immunoassay

Authors: Ki Chang Ahn, Marja E. Koivunen, Shirley J. Gee, Ian M. Kennedy and Bruce D. Hammock, UC Davis

Session: Sci-Mix

Session date and time: 8 p.m. to 10 p.m., Monday, March 29

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